In human skeletal muscle, the activity of genes involved in glucose uptake and energy production increases during the late afternoon, matching the time when insulin levels rise after eating. This pattern suggests a biological adjustment to anticipated nutrient intake.

44

Pro

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Against

Evidence from Studies

Supporting (1)

44

Community contributions welcome

44

Characterizing 24-Hour Skeletal Muscle Gene Expression Alongside Metabolic and Endocrine Responses Under Diurnal Conditions

Cross-Sectional Study

Human

2025 Mar 17

The study found that muscles prepare to use sugar more efficiently in the late afternoon, right when insulin levels rise after eating — just like the claim says.

Contradicting (0)

0

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No contradicting evidence found

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Source Study

Characterizing 24-Hour Skeletal Muscle Gene Expression Alongside Metabolic and Endocrine Responses Under Diurnal Conditions

Score: 44

DOI: 10.1210/clinem/dgae350

Similar Assertions

In healthy people with regular feeding schedules during waking hours, the activity of specific genes in muscle tissue that manage glucose and fat metabolism follows a daily rhythm, and the timing of this activity matches changes in insulin levels in the blood.

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During the overnight fast, the body increases the activity of a specific gene in muscle tissue (PDK4) at around 5:30 a.m., which aligns with low insulin and high fat levels in the blood, promoting the use of fat as a fuel source.

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71%

Your muscles need a special door (GLUT4) to let glucose in for energy. When you need energy right now, your body quickly moves these doors to the surface. But if you exercise regularly, your muscles build more of these doors as a long-term change.

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